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HIV is a retrovirus that primarily infects components of the human immune system such as CD4 + T cells, macrophages and dendritic cells. It directly and indirectly destroys CD4 + T cells. [88] HIV is a member of the genus Lentivirus, [89] part of the family Retroviridae. [90] Lentiviruses share many morphological and biological characteristics.
Two types of HIV have been characterized: HIV-1 and HIV-2. HIV-1 is the virus that was initially discovered and termed both lymphadenopathy associated virus (LAV) and human T-lymphotropic virus 3 (HTLV-III). HIV-1 is more virulent and more infective than HIV-2, [20] and is the cause of the majority of HIV infections globally. The lower ...
HIV is commonly transmitted via unprotected sexual activity, blood transfusions, hypodermic needles, and from mother to child. Upon acquisition of the virus, the virus replicates inside and kills T helper cells , which are required for almost all adaptive immune responses .
Lentivirus is a genus of retroviruses that cause chronic and deadly diseases characterized by long incubation periods, in humans and other mammalian species. [2] The genus includes the human immunodeficiency virus (HIV), which causes AIDS.
HIV-1 is the most common and most pathogenic strain of the virus. As of 2022, approximately 1.3 million such infections occur annually. [4] [5] Scientists divide HIV-1 into a major group (group M) and two or more minor groups, namely groups N, O and possibly a group P.
A Pennsylvania woman faces indecent assault charges after allegedly attempting to ply two tween boys with alcohol and sexually assault one of them after they shoveled snow from her driveway.
East Asia has an estimates 3.5 million people living with HIV, with prevalence low in the 15-49 age range. HIV/AIDS has remained somewhat stable with an approximated 3.5 million cases since 2005. Thailand is the only east Asian country with an over 1% HIV prevalence, which has declined from 1.7% in 2001 to 1.1% in 2015.
Army is ranked 22nd in the nation with their 11-1 record - while Navy is on the outside looking in, they are 8-3. The Black Knights have won six of the last eight meetings after the Midshipmen had ...